Speaker Amplifier ML2620

ML2620 is speaker amplifier with "LOUDNESS" of that technology can enlarge volume from small speaker without distortion and clipping noise. Since the LSI has ALC (Automatic Level Controller), it can enlarge volume, when audio signal is small. Besides, the LSI will protect speaker, when audio signal is too big. The LSI is the best speaker amplifier for mobile phone, DSC, portable TV and etc that play multi-media contents from built-in small speaker.

Features & Specifications

-         CPU Interface

 Support two mode

- 2 wired serial interface

- 7bit address, slave address is fixed to "0011010"

- support Standard/Fast mode

- 3 wired serial interface

-         OKI original "LOUDNESS" technology for volume enhancement

-         ALC (Auto level controller) embedded

-         Fade-in, Fad-out function

-       8W 800mW Speaker amplifier

-         External System clock

- 32kHz~20MHz

-         Power supply voltage

- IOVDD : 1.65~3.60V

- LVDD : 2.25~2.75V (up to 2.90V under the special condition)

- HVDD: 2.7~5.5V

-         Packages

- 2.54mm * 2.42mm W-CSP

- 4mm * 4mm QFN (under development)

Block Diagram

Application Circuit

• To the page of 2007
• PI Sheet
• Data Sheet (Digest) [PDF]

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